29 Mar '15, 10pm

Lake Chad and a Bodele Dust Plume #NASA #ImageOfTheDay

This east-looking photograph, taken by astronauts from the International Space Station, shows the arid landscapes of the Sahara and the darker vegetation of the wetter, semi-arid woodland known as the Sahel. The dark green marshes of Lake Chad stand out in the foreground. Even though it is more than 200 kilometers (120 miles) long, modern Lake Chad is just a small remnant of a vast lake that has repeatedly occupied the most of this landscape in the recent geological past. This lake basin stretches almost 1000 kilometers (600 miles) from the foreground of the image to the foot of the Tibesti Mountains. The lowest slopes of the Tibesti show the remnants of great deltas. The image also captures an active dust plume, though it is partly obscured by the “Canada Arm” of the Space Station. The dust rises from the white mud flats of the ancient lake bed, likely from the Bodele Dep...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=85588&s...

Tweets

Lake Chad and a Bodele Dust Plume: Desert meets...

earthobservatory.nasa.gov 29 Mar '15, 10pm

This east-looking photograph, taken by astronauts from the International Space Station, shows the arid landscapes of the S...

Lake Chad and a Bodele Dust Plume #NASA

earthobservatory.nasa.gov 30 Mar '15, 2pm

This east-looking photograph, taken by astronauts from the International Space Station, shows the arid landscapes of the S...

"You’re looking on numbers that are right on pa...

latimes.tumblr.com 10 Apr '15, 9am

You’re looking on numbers that are right on par with what was the Dust Bowl. — Michael Anderson, California’s state climat...

Looking Down and Up at the Aurora: On Saint Pat...

earthobservatory.nasa.gov 28 Mar '15, 10pm

Even Earth’s skies were celebrating St. Patrick’s Day this year. On March 17, 2015, a severe geomagnetic storm—the stronge...